Browse free open source Java Games and projects below. Use the toggles on the left to filter open source Java Games by OS, license, language, programming language, and project status.

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  • 1
    THIS PROJECT IS NO LONGER ACTIVE, AND HAS NOT BEEN FOR MANY YEARS. Old: A website application for game clans with sophisticated news system, member management, tagwall, ladder info, game server status, live IRC stats, integration with opensource IRC bot and login system for members.
    Downloads: 4 This Week
    Last Update:
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  • 2
    CS:GO Multi Script

    CS:GO Multi Script

    Multi scripts for CS:GO that do just about everything

    I have not posted any of the code yet, I'm working on it locally then will push everything. This is not to be used in game (maybe deathmatch only :stuck_out_tongue:), but rather is meant to have some with the features that Java provides. I included all source so that you can see what I used. This is a great project to learn about global event listener, JRobot, JavaFX, etc... Most of the people said this just makes it harder to play the game, so it's not fantastic. The only thing I would say is worth getting banned over is the "camping" trigger bot and the crosshair overlay. The other features don't really provide an unfair advantage in my opinion. Either way, enjoy :)
    Downloads: 4 This Week
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  • 3
    Cala Mondrago

    Cala Mondrago

    Board game Mondrago for Android platform.

    Latest Mondrago for Android APK can be found in the partner project on https://github.com/OMerkel/Cala_Mondrago. The partner project is a code rewrite from scratch. Here you can find the board game Mondrago for Android platform as an electrical version of the Mondrago board game as originally created and published by Adrian Schacker in 1992. Thank you very much to Adrian kindly supporting our open source project by allowing us to use the original logo, name, and color scheme. See the Mondrago community website for the original rules in text format translated into various languages.
    Downloads: 4 This Week
    Last Update:
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  • 4
    Chess Diagram Editor
    Chess Diagram Editor is a simple program to create chess diagrams. The program supports GIF, JPG, PNG as well as FEN files.
    Downloads: 4 This Week
    Last Update:
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  • 5
    CivQuest is a strategy game largely inspired by the Civilization genre. It incorporates some unique ideas, and allows for play against A.I. opponents. It is written in Java, so it runs on many platforms.
    Downloads: 4 This Week
    Last Update:
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  • 6
    D5.2 is a web-based game in which players explore an infinite procedurally generated world. They can claim sections of the map and build on them. Design is very open-architecture to allow new terrain generators and game rules to be easily added.
    Downloads: 4 This Week
    Last Update:
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  • 7

    Dargon RPG

    Grid-based Java medieval RPG map editor & battle system

    This is my high school programming project for my senior year. I worked on this with my partner, Seth Burrell. I worked on the battle system which currently has a command-line interface. Seth worked on the map editor which is drag and drop. It is still a work in progress.
    Downloads: 4 This Week
    Last Update:
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  • 8
    Dots and Boxes / Käsekästchen

    Dots and Boxes / Käsekästchen

    Dots and Boxes for 6 players / Käsekästchen für sechs Spieler

    Play Dots and Boxes with the whole family. Who finishes a box, may put his / her cheese in. Who has most boxes filled, wins the game. Hint: turn on your video beamer, get a wireless mouse and take place on your favourite sofa! Käsekästchen spielen für die ganze Familie. Wer ein Kästchen fertig bekommt, darf seinen Käse hineintun. Wer am Ende die meisten Kästchen gefüllt hat, gewinnt. Tip: Beamer an, Funkmaus dran, und rauf aufs Sofa!
    Downloads: 4 This Week
    Last Update:
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  • 9
    A Rubik's cube game for java capable cellphones (MIDP 2.0). Features: - multiple views: 3D and 2D (also able to run on older cellphones which do not support 3D) - automatic solvers which can solve the cube either step-by-step or completely.
    Downloads: 4 This Week
    Last Update:
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  • 10
    Deck editor for the popular trading card game 'Magic: The Gathering'. Please be aware that you need the physical cards to actually play the game :-)
    Downloads: 4 This Week
    Last Update:
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  • 11
    The Fallout 3 Terminal Hacking Solver (F3THS) is designed to aid in hacking the terminals within the video game Fallout 3. You simply input the available words and the F3THS will assist you in solving the correct password.
    Downloads: 4 This Week
    Last Update:
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  • 12
    FarmSim

    FarmSim

    Farmsim is a farming simulation game for people. It is very intersting

    Farmsim is a farming simulation game for people living in the developing region to learn the concept of money, micro loans, borrowing money, paying interst, paying the principle amount, and augmenting money by working smartly, etc. The goal is to learn as much as real skills needed in taking loans to start a small farming business and also be good at it. If they can make good money, it is good and it means they will be more likely succeed in the real business.
    Downloads: 4 This Week
    Last Update:
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  • 13
    Downloads: 4 This Week
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  • 14
    Downloads: 4 This Week
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  • 15
    Helden Tagebuch
    Das Helden Tagebuch ist ein Plugin für die bekannte DSA Software Helden Software. Mit diesem Plugin könnt ihr ein Tagebuch für euere Helden führen. Im Wiki findet ihr eine kleine Anleitung.
    Downloads: 4 This Week
    Last Update:
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  • 16
    Imperium Mundus is a real time strategy game written in pure Java (Java 2 SDK 1.4.2). The game objectives are many: hold your own territories, capture enemy territory, establish or join strong alliances, conquer the whole world or just try to survive.
    Downloads: 4 This Week
    Last Update:
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  • 17

    Infinite Wisdom

    Java RTS framework

    A bare bones RTS game framework. It has networking and replay support, and have some building blocks to build AI agents (discretized path finding in a continous world). Update (2025. Jun): javax.xml.bind.annotation.XmlAccessType was removed from JDKs later than 1.8. So use the project with JDKs from 1.6 to 1.8. Write in the forum if you're interested in running it on a more modern JDK. The demo program's entry point is Dom1Bootstrapper. You can download a runnable demo jar from the files. If your default JDK is higher than 1.8, it won't start on double click. Update (2014. May 9.): Detailed documentation is uploaded (i.e. my thesis). It examines the system from the user's perspective, but includes some internal details too. Of course it has some extra chapters here and there to conform to the format of a thesis. Check it out at the "Files" section (r221). There's also a corresponding src/bin/javadoc bundle there.
    Downloads: 4 This Week
    Last Update:
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  • 18
    JMud is a MUD server written in Java(TM) from scratch. Portuguese (Brazilian) version is available right now. Multi-lingual support is in progress for Spanish and English.
    Downloads: 4 This Week
    Last Update:
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  • 19
    JSpaceHulk is a Java implementation of Games Workshop 's Space Hulk, a tactical simulation minatures game. JSpaceHulk aims to implement a single player SpaceHulk game with an extensible AI.
    Downloads: 4 This Week
    Last Update:
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  • 20
    JavaPairing is a tool to manage a chess tournament. It is pure Java and can run as is on any platform, including Windows, Linux and Macintosh (JRE 1.6 or more required). It is free and open source under the GPLv3 license. Dutch, Dubov, r.r., Amalfi
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    Downloads: 4 This Week
    Last Update:
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  • 21
    A Java geocaching tool.
    Downloads: 4 This Week
    Last Update:
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  • 22
    Please visit our new website at http://moncefyabi.github.io/Joge/ Joge - Java OpenGL Game Engine- is a platform to develop 2D game (3D in the future) in Java. It´s simple to learn, fast, extensible and has an extra GUI system. For installation and Video tutorials see project website. Joge, the best Java game engine.
    Downloads: 4 This Week
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  • 23
    MATrainer is an educational Java program that improves your mental arithmetic skills.
    Downloads: 4 This Week
    Last Update:
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  • 24
    MINECRAFT2D hahn2014

    MINECRAFT2D hahn2014

    Minecraft side viewed game made in Java

    This started when one of my friends said I couldn't possibly make a full blown video game in Java, and know I have made Minecraft in Java and it consists of an inventory, blocks, and more!
    Downloads: 4 This Week
    Last Update:
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  • 25
    This tool has two parts : a collection manager and an online duel virtual battleground for the card game "Magic : The Gathering", written in Java (Java 5, JFreeChart and XStream are needed). You can import cards using the official online card database.
    Downloads: 4 This Week
    Last Update:
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